ASTROSAT CZTI

Data Quality Report

Orbit 19565

Creation date: 2024-06-27T18:04:16.468629
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T03_005T01_9000002908_19565cztM0_level2.evt modeM0/AS1T03_005T01_9000002908_19565cztM0_level2_quad_clean.evt
Size (bytes)523,094,40085,694,400
Size498.9 MB 81.7 MB
Events in quadrant A3,017,971556,044
Events in quadrant B3,138,375566,374
Events in quadrant C3,177,240533,589
Events in quadrant D6,067,864485,722

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132062
B0134622
C0135772
D0226172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A649690.138547%
B6496180.277094%
C6496370.569581%
D64965117.866379%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7586 6497 0 0 0.00% 0.00%
B 7586 6497 6 6 0.08% 0.09%
C 7586 6497 0 0 0.00% 0.00%
D 7586 6497 461 461 6.08% 7.10%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 8343 47.9 783 767 158.2
A 0 226 6662 37.27 783 767 158.2
A 3 137 6361 35.37 783 767 158.2
B 3 64 45858 299.06 785 764 150.8
B 12 111 18286 116.2 785 764 150.8
B 11 111 16206 102.41 785 764 150.8
C 14 238 118044 668.21 750 756 175.5
C 3 233 75564 426.19 750 756 175.5
C 7 247 41208 230.46 750 756 175.5
D 12 218 1468513 8181.58 728 706 179.4
D 1 52 931572 5188.66 728 706 179.4
D 7 238 773744 4308.93 728 706 179.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter